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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2010-12-01 09:40:32 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-12-13 16:52:52 -0800 |
| commit | 086e8ced65d9bcc4a8e8f1cd39b09640f2883f90 (patch) | |
| tree | 3d0e6ee303ab0cce2bd3319a5a24bc94c37538eb /arch/x86 | |
| parent | 254e42006c893f45bca48f313536fcba12206418 (diff) | |
| download | op-kernel-dev-086e8ced65d9bcc4a8e8f1cd39b09640f2883f90.zip op-kernel-dev-086e8ced65d9bcc4a8e8f1cd39b09640f2883f90.tar.gz | |
x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode
In x2apic mode, we need to set the upper address register of the fault
handling interrupt register of the vt-d hardware. Without this
irq migration of the vt-d fault handling interrupt is broken.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
LKML-Reference: <1291225233.2648.39.camel@sbsiddha-MOBL3>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: stable@kernel.org [v2.6.32+]
Acked-by: Chris Wright <chrisw@sous-sol.org>
Tested-by: Takao Indoh <indou.takao@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 226060e..fadcd74 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3412,6 +3412,7 @@ dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask, msg.data |= MSI_DATA_VECTOR(cfg->vector); msg.address_lo &= ~MSI_ADDR_DEST_ID_MASK; msg.address_lo |= MSI_ADDR_DEST_ID(dest); + msg.address_hi = MSI_ADDR_BASE_HI | MSI_ADDR_EXT_DEST_ID(dest); dmar_msi_write(irq, &msg); |
